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Characterization of lead zirconate titanate ceramics for use in miniature high-frequency (20-80 MHz) transducers
IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control
The development of new endoscopic applications of ultrasound imaging is critically dependent on the availability of efficient broadband transducers with areas of 2 mm2 or less. The material properties of PZT ceramics for operation in the thickness mode at frequencies as high as 80 MHz are reported. Each of the ceramics tested showed a reduction in k, with increasing frequency. In a fine grained PZT, values of k, as high as 0.44 were measured at 80 MHz. The effects of grain size were alsodoi:10.1109/58.84289 pmid:18267606 fatcat:jz4qa5k7vjaxfmccjaeto7g3jy